Adjustable fastener



G. R. MITCHELL.

ADJUSTABLE FASTENER.

(No Model.)

Patented Nov. 30,1897.

UNITED STATES PAT NT OFFICE.

GEORGE R. MITCHELL, OF NE'WBURG, NEW YORK.

ADJUSTABLE FASTENER.

SPECIFICATION forming part of Letters Patent No. 594,749, dated November 30, 1897.

' Application filed May 25, 1897. Serial No. 638,085. (No model.)

T0 at whom it may concern:

Be it known that I, GEORGE R. MITCHELL, a citizen of the United States, residing at Newburg, in the county of Orange and State of New York, have invented certain new and useful Improvements in Adjustable Fasteners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable'others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in fasteners such as are used for attaching marble slabs, tiles, and other like articles to walls, 850., and has for its object to provide a cheap and convenient adjustable fastener which can be readily and efiectually applied and which does not require a hole to be made through the article to be attached.

My invention will be particularly valuable for holding marble slabs in position at the back of stationary washstands and other like positions. Such slabs are now generally held in position by screws which pass through the slab, thereby destroying the smooth outer surface of the same.

My invention will be understood by reference to the accompanying drawings, wherein the same parts are designated by the same letters throughout the several views.

Figure 1 is a vertical central section of my fastener in position. Fig. 2 is a perspective View of the same. Fig. 3 is a side elevation of the connecting-bolt D, showingthe polygonal nut D in position on the same. Fig. 4 is a perspective view of the escutcheon or retaining-plate.

Referring to the said drawings by letter, A B denote the parts to be connected and to which my fastener is applied. In the part A, which represents the wall, I form an opening A, into which is attached the escutcheon or retaining-plate O, in which is provided the longitudinal slot 0, which has an enlarged opening at the top, as shown. In the inner side of B, which is the part to be attached, I form a square opening B, into which is secured the square head D of the connectingbolt D. The head D is secured in the opening B by being leaded therein. The connecting-bolt D is provided with a screw-thread on which the polygonal nut Dioperates. The

escutcheon or retaining-plate C is bent at right angles at its lower end, so that when it is in position in the opening A the bottom of the same is a considerable distance from the face of the wall in which the opening is formed and is held in position by screws which pass through holes in either end of the same provided for that purpose. The enlarged opening at the top of the slot 0 in the escutcheon O is of sufficient size to receive the polygonal nut D when the same is in position on the connecting-bolt D.

The fastener can be adj usted' to bring the parts A and B in their correct relative position by moving the polygonal nut D on the screwthread on the connecting-bolt D. The connection is made by inserting the polygonal nut D", when in position on theconnectingbolt D, through the enlarged opening of the slot 0' in the escutcheon O and lowering the same until the polygonal nut D is engaged by the narrow part of the slot 0, when the weight of the material to be attached will draw the polygonal nut D down against the inner side of the escutcheon O, which, being made slanting, as shown, will hold the connected parts firmly in position, as shown most clearly in Fig. 1. The parts can be disconnected at any time by raising the part B, to which is attached the connecting-bolt D, until the polygonal nut D is allowed to pass out through the enlarged opening at the top of the slot 0.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is

A fastener comprising the connecting-bolt D, havingasquare head D at one end, scre wthreaded and provided with a nut at the other end, in combination with a retaining-plate C of sucha shape that it occupies an inclined position when in place, and provided with an opening 0 larger than said nut, and a slot extending downwardly from said opening smaller than said nut, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE R. MITCHELL. Witnesses:

HENRY KOHL, I, K. M. SEEGER. 

